<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<link rel="stylesheet" href="./reset.css">
<style>
  .box {
    width: 200px;
    height: 200px;
    background-color: yellow;
    box-shadow: 10px 10px orange;
  }

  .box1 {
    width: 200px;
    height: 200px;
    background-color: yellow;
    border-radius: 50%;
  }
</style>

<body>
  <ul>
    <li><a href="#"><img src="./img/d202e0636bcf845e.png" alt=""></a></li>
    <li><a href="#"><img src="./img/d202e0636bcf845e.png" alt=""></a></li>
    <li><a href="#"><img src="./img/d202e0636bcf845e.png" alt=""></a></li>
  </ul>
  <!-- 阴影 -->
  <div class="box">
  </div>
  <!-- 圆形 -->
  <div class="box1"></div>
</body>

</html>